中国电机工程学报2017，Vol.37Issue(12)：3449-3455,7.DOI:10.13334/j.0258-8013.pcsee.160345
基于相对增益阵列方法的水电站多机水力耦合系统交互影响分析
Interaction Analysis of Hydro-Coupled Power Plants Based on Relative Gain Array Method
摘要
Abstract
The complex water supply modes in the water diversion system of hydropower plants with multiple units cause interactions among the hydraulic coupling units,which change the dynamic behavior of whole hydro generation system,and have great effects on the control tuning of governors.The relative gain array (RGA) method provides a measure of interactions among control loops in a coupled system.In this paper,RGA method was applied to quantify the control interactions among different units in a hydro-coupled power plant.Based on the state space equation of the whole hydro-coupled generation system,RGA matrix of the coupled system was calculated in frequency domain.Distribution properties of the interactions in frequency domain had been analyzed and influences of the surge tank and the branch penstocks on the degree of such interactions had been proved.Time domain simulations indicate the practicability and effectiveness of the RGA method and these interaction analyses will provide basis for coordinated control design for multi-units in hydro-coupled power plants.关键词
水电站/多机/水力耦合/相对增益阵列/交互影响/调速控制Key words
hydropower plants/multiple units/hydraulic coupling/relative gain array (RGA)/interaction/speed control分类
信息技术与安全科学引用本文复制引用
邹金,赖旭..基于相对增益阵列方法的水电站多机水力耦合系统交互影响分析[J].中国电机工程学报,2017,37(12):3449-3455,7.基金项目
国家自然科学基金项目(51379159) （51379159）
高等学校博士学科点专项科研基金资助项目(20130141130001).Project Supported by National Natural Science Foundation of China (51379159) （20130141130001）
Project Supported by Special Scientific and Research Funds for Doctoral Speciality of Institution of Higher Learning (20130141130001). （20130141130001）
